Normally, Centralia City Light’s Yelm hydroelectric plant provides more than 20% of the power used by customers in the city.

That number fell to 9.6% in 2023, according to a Centralia City Light news release.

Customers’ remaining power is provided through power sharing via long-term contracts with the Bonneville Power Administration (BPA) and market purchases.

“The percentages below provide information on the fuels used to generate the electricity Centralia provided to its customers in 2023,” the release stated. “While Centralia owns no nuclear generation, a portion of the power purchased from BPA comes from that source.”

While the city’s own hydroelectric generation only accounted for 9.6% of the power used in 2023, hydroelectricity accounted for a total of 76.39% of the city’s power when BPA’s contribution was taken into account, for a total of 209,150 megawatts.

The nuclear-generated electricity accounted for 9.64% of the city’s power, or 26,384 megawatts.

The remaining 13.97% of power, or 38,262 megawatts, consumed by Centralia City Light customers came from unspecified sources.

No power was generated from coal, petroleum or wind. Centralia City Light is required to provide the information in accordance with state law.

For more information, visit the city’s website at https://www.cityofcentralia.com/183/City-Light or call Centralia City Light at 360-330-7512.